WELL TREATMENT FLUIDS CONTAINING A VISCOELASTIC SURFACTANT AND A CROSS-LINKING AGENT COMPRISING A WATER-SOLUBLE TRANSITION METAL COMPLEX - Patent 2494001

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EP 2 494 001 A1

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(43)	Date of publication:
	05.09.2012 Bulletin 2012/36

(21)	Application number: 10771807.4

(22)	Date of filing: 29.10.2010

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International Patent Classification (IPC):

C09K 8/60^(2006.01)

C09K 8/68^(2006.01)

(86)	International application number:
	PCT/GB2010/002010

(87)	International publication number:
	WO 2011/051683 (05.05.2011 Gazette 2011/18)

(84)	Designated Contracting States:
	AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

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Priority:

30.10.2009 US 610083

(71)	Applicant: Halliburton Energy Services, Inc.
	Houston, TX 77072 (US)

(72)	Inventor:
	REDDY, Bairreddy, Raghava Duncan, Oklahoma 73533 (US)

(74)	Representative: Cottrill, Emily Elizabeth Helen
	A.A. Thornton & Co. 235 High Holborn London WC1V 7LE London WC1V 7LE (GB)

(54)	WELL TREATMENT FLUIDS CONTAINING A VISCOELASTIC SURFACTANT AND A CROSS-LINKING AGENT COMPRISING A WATER-SOLUBLE TRANSITION METAL COMPLEX